What is CVE-2026-33783?

CVE-2026-33783 is a medium-severity vulnerability in Juniper Junos_os_evolved, classified under CWE-686. CVSS score: 6.5/10. Published 2026-04-09.

How severe is CVE-2026-33783?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Juniper Junos_os_evolved

CVE-2026-33783

A Function Call With Incorrect Argument Type vulnerability in the sensor interface of Juniper Networks Junos OS Evolved on PTX Series allows a network-based, authenticated attacker with low privileges to cause a complete Denial of Service…

EPSS: 0.002 (15.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Juniper Junos_os_evolved — versions 22.4, 23.2, 23.4
Juniper Ptx10001-36mr
Juniper Ptx10002-36qdd
Juniper Ptx10003
Juniper Ptx10004
Juniper Ptx10008
Juniper Ptx10016
Juniper Ptx12008
Juniper Networks Junos Os Evolved — versions 0, 23.2, 23.4

Weakness classification (CWE)

CWE-686

References

sirt@juniper.net (vendor-advisory, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2026-33783?: CVE-2026-33783 is a medium-severity vulnerability in Juniper Junos_os_evolved, classified under CWE-686. CVSS score: 6.5/10. Published 2026-04-09.
How severe is CVE-2026-33783?: Medium severity. CVSS v3 base score is 6.5 out of 10.